/**
 * @Author：ming
 * @Date：2023/10/2 1:21 AM
 * @Filename：Lc82
 */

/**
 * @author ming
 */
public class Lc82 {
    public ListNode deleteDuplicates(ListNode head) {
        if(head==null){
            return null;
        }
        if(head.next==null){
        return head;
        }


        ListNode l = head;
        ListNode r = head.next;
        while (r!=null){


        }

        return null;
    }
}
